St52 and St52-3 are both grades of steel commonly used in structural applications. The primary difference between them lies in their chemical composition and mechanical properties.
DIN17100 St52-3
| Chemical composition % MAX | |||||||||
| C | Si | P | S | N2 | |||||
| TH (MM) |
≤16 | >16≦32 | >32≦40 | >40 | |||||
| 0.20 | 0.20 | 0.22 | 0.22 | - | 0.05 | 0.05 | 0.009 | ||
| Mechanical properties MIN | |||||||||
| Yield strength (N/MM2) | Tensile strength (N/MM2) | ||||||||
| TH (MM) |
≤16 | >16≦40 | >40≦63 | >63≦80 | >80≦100 | >100 | <3 | >3≦100 | >100 |
| 355 | 345 | 335 | 325 | 315 | - | 510-680 | 490-630 | - | |
St52 Steel Equivalent Material
|
Germany |
US |
European Union |
Japan |
China |
India |
ISO |
|||||||
|
Standard |
Steel |
Standard |
Steel |
Standard |
Steel (Steel number) |
Standard |
Steel |
Standard |
Steel |
Standard |
Steel |
Standard |
Steel |
|
DIN 17100: 1980 |
St 52 |
ASTM A572/A572M |
Grade 50 |
EN 10025-2: 2005 |
S355 |
GB/T 1591 |
Q345; |
IS 2062 |
E350 |
||||
|
St 52-3 |
S355J2 (1.0577) |
JIS G3135 |
SPFC590 |
Q355C; Q345C |
ISO 630-2 |
S355C |
|||||||
|
St 52-3U |
S355J0 (1.0553) |
||||||||||||
What is the difference between St52 and St52-3?

St52: This grade is a low alloy, high-strength structural steel that conforms to the DIN 17100 standard. It has a minimum yield strength of 355 MPa and is typically used in construction and general engineering applications. St52 does not have any specific additional designations or requirements beyond the DIN 17100 specification.
St52-3: This grade is an enhanced version of St52, also conforming to the DIN 17100 standard. The "3" indicates that it has been normalized, which means it has undergone a controlled heating and cooling process to improve its mechanical properties. St52-3 has a minimum yield strength of 355 MPa and is known for its excellent weldability and toughness. It is commonly used in welded structures and other applications where high strength and good impact resistance are required.
In summary, while St52 and St52-3 share similar chemical compositions and basic mechanical properties, St52-3 has undergone a normalization process to enhance its mechanical characteristics, particularly its weldability and toughness.
Email: info@gneesteels.com
Whatsapp (WeChat) :+86 15824687445
FAQ
Q: What is St 52.3 material standard?
A: ST52-3 material or mechanical properties, ST 52.3 material is a low alloy, high power physical steel which can be freely welded to other wieldable steel. ST52-3 steel's Powered properties is Yield power more than 355 MPa, tensile power 490-630Mpa.
Q: What is s152 3 material?
A: Description. ST52-3 grade steel is a readily weldable low carbon manganese steel with good impact resistance (including in sub-zero temperatures). This material is commonly supplied in the untreated or normalised condition. Machinability of this material is similar to that of mild steel.
Q: What is the difference between A36 and ST52-3?
A: Key Differences
ST52 has a higher yield and tensile strength compared to A36, making it suitable for more demanding applications where higher strength is required. Composition: A36 has a higher carbon content compared to ST52, while ST52 has higher manganese content which contributes to its strength.
Q: What is the difference between ST52 and s355?
A: Low-Temperature Toughness: S355J2 guarantees impact toughness at -20°C, outperforming St52-3 (tested at 0°C). Strength Consistency: St52-3 has a higher tensile strength lower bound (490 vs. 470 MPa), ensuring reliability in static load designs.
Q: What is the steel equivalent to the ST52-3?
A: What is the steel grade ST52 equivalent to?
While exact equivalents may vary based on standards and specifications, ST52-3 is commonly compared with S355JR due to similar mechanical properties and applications.
Q: What is DIN 17100 ST52-3 equivalent to?
A: DIN 17100 ST 52.3 equivalent EN steel S355JR offers high yield strength and tensile strength, and it is supplied with a variety of treatments and test options to ensure that it is a highly usable steel in your various projects.
| Other steel plate | ||||
| Name | Material | Specification (mm) | Tons | Remark |
| Low Alloy | Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo | 6 - 350 | 5788.56 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| Pressure Vessel Plate | Q245R, Q345R, Q370R, 16MnDR, 09MnNiDR, 15CrMoR, 14Cr1MoR, 12Cr2Mo1R, SA516Gr60, SA516Gr70, SA516Gr485, SA285, SA387Gr11, SA387Gr12, SA387Gr22, P265,P295,P355GH,Q245R(R-HIC),Q345R(R-HIC) | 3 - 300 | 8650 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| High-Strength Plate | WH785D/E,Q960D/E, Q890D/E,WH60D/E,WH70B,Q550D,Q590D,Q690D/E | 8 - 120 | 3086.352 | Quenched and tempered |
| Wear-Resistant Plate | NM360, NM400, NM450, NM500 | 6 - 150 | 3866.297 | Quenched and tempered |
| Bridge Plate | Q235qC, Q345qC, Q370qC, Q420qC, Q345qDNH, Q370qDNH, A709 - 50F - 2, A709 - 50T - 2 | 8 - 200 | 2853.621 | Hot rolling, normalized ,hot rolling controlled rolling, quenched and tempered + toughness and brittleness |




